ASTROSAT CZTI

Data Quality Report

Orbit 47333

Creation date: 2024-06-29T11:42:04.896987
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A13_037T01_9000006318_47333cztM0_level2.fits modeM0/AS1A13_037T01_9000006318_47333cztM0_level2_quad_clean.evt
Size (bytes)559,143,360111,749,760
Size533.2 MB 106.6 MB
Events in quadrant A8,121,988729,465
Events in quadrant B3,356,025777,674
Events in quadrant C3,032,651735,825
Events in quadrant D5,640,413649,119

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0293403
B0149491
C0144731
D0215521

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70563845.442177%
B70571141.615417%
C7057380.538472%
D70573895.512257%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7576 7057 53 53 0.70% 0.75%
B 7577 7058 2 2 0.03% 0.03%
C 7577 7058 1 1 0.01% 0.01%
D 7577 7057 254 254 3.35% 3.60%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 83 3524357 21897.63 771 754 160.9
A 15 235 1126743 6997.52 771 754 160.9
A 9 191 460435 2856.71 771 754 160.9
B 4 171 154569 984.33 782 758 156.3
B 5 255 25643 159.25 782 758 156.3
B 12 111 20294 125.02 782 758 156.3
C 3 233 19895 104.8 768 773 182.5
C 1 3 7260 35.55 768 773 182.5
C 5 4 6595 31.91 768 773 182.5
D 6 112 1156969 6156.76 746 724 187.8
D 10 204 606166 3223.85 746 724 187.8
D 2 249 486964 2589.13 746 724 187.8

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter